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Finding the Fourth Proportional to 328,704,759.70, 493,057,139.55 and 158,835,447.70

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Solution

The fourth proportional to 328,704,759.70, 493,057,139.55 and 158,835,447.70 is: 238,253,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,704,759.70 : 493,057,139.55 = 158,835,447.70 : x
  2. Step 2: Convert to fraction form
    328,704,759.70/493,057,139.55 = 158,835,447.70/x
  3. Step 3: Cross multiply
    328,704,759.70x = 493,057,139.55 × 158,835,447.70
  4. Step 4: Simplify right side
    328,704,759.70x = 78,314,951,502,105,616
  5. Step 5: Solve for x
    x = 78,314,951,502,105,616/328,704,759.70
  6. Step 6: Final answer
    x = 238,253,171.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.